GMI GT series User Manual

5-5
CONFINED SPACE MODEUSER HANDBOOK
5.5.3 Alarm Acknowledge
HIHI, LOLO for O
2
(if tted), and Time Weighted Average (TWA)
alarms are latching by default. The AL / ACK will only cancel the
alarms if all gases have returned to “safe” levels.
An option of HI, or LO for O
2
(if tted), non latching alarms are
available, as follows:
When the reading drops below the alarm level, the alarm will
automatically cancel.
Alarms can also be muted for one minute.
To acknowledge for one minute:
• Press and hold the LH button .
If an alarm occurs in CSM, the user should go into fresh air until
the gas concentration falls below the alarm level and is cancelled.
Menu mode can still be entered while an alarm is active in CSM.
To enter menu mode:
• Press and hold the LH button and the RH button
simultaneously, for 5 seconds.
5.5.4 Flow Fault
Before clearing a ow fault alarm the instrument must be checked
for water ingress or blockage.
To clear a Flow Fault alarm:
• Press the RH button .
5.5.5 Manual Log
A manual log can be taken at any time.
To capture a manual log:
• Press and hold the RH button .

GMI GT series Specifications

General

Brand	GMI
Model	GT series
Category	Measuring Instruments
Language	English